diff --git a/backend/database.go b/backend/database.go
index 7987953..66f3e54 100644
--- a/backend/database.go
+++ b/backend/database.go
@@ -608,3 +608,19 @@ func DeleteSchoolYear(db *sql.DB, id int) error {
 
 	return nil
 }
+
+func DeleteNonManualTimeEntriesByUserAndWeek(db *sql.DB, userID int, year int, week int) error {
+	dates := calculateWeekDates(year, week)
+	var dateList []string
+	for day := 0; day <= 4; day++ {
+		dateList = append(dateList, dates.Dates[fmt.Sprint(day)])
+	}
+
+	query := `DELETE FROM time_entries 
+	          WHERE user_id = ? 
+	          AND type != 'manual' 
+	          AND date IN (?, ?, ?, ?, ?)`
+
+	_, err := db.Exec(query, userID, dateList[0], dateList[1], dateList[2], dateList[3], dateList[4])
+	return err
+}
diff --git a/backend/handlers.go b/backend/handlers.go
index 22d4e92..06b3f57 100644
--- a/backend/handlers.go
+++ b/backend/handlers.go
@@ -340,7 +340,7 @@ func (app *App) DeleteWeekEntries(c echo.Context) error {
 		return HandleError(c, ErrInvalidInputMsg("Woche"))
 	}
 
-	if err := DeleteTimeEntriesByUserAndWeek(app.DB, claims.UserID, year, week); err != nil {
+	if err := DeleteNonManualTimeEntriesByUserAndWeek(app.DB, claims.UserID, year, week); err != nil {
 		return HandleError(c, ErrDatabaseMsg(err))
 	}
 
@@ -417,6 +417,19 @@ func (app *App) CreateBatchTimeEntriesHandler(c echo.Context) error {
 		return HandleError(c, ErrMissingFieldMsg("Zeiteinträge"))
 	}
 
+	if len(req.Entries) > 0 {
+		firstDate := req.Entries[0].Date
+		t, err := time.Parse("2006-01-02", firstDate)
+		if err != nil {
+			return HandleError(c, ErrInvalidInputMsg("Datum-Format"))
+		}
+		year, week := t.ISOWeek()
+
+		if err := DeleteNonManualTimeEntriesByUserAndWeek(app.DB, claims.UserID, year, week); err != nil {
+			return HandleError(c, ErrDatabaseMsg(err))
+		}
+	}
+
 	tx, err := app.DB.Begin()
 	if err != nil {
 		return HandleError(c, ErrDatabaseMsg(err))